Block shaping and trimming machine.



j, W. LEE. BLOCK SHAPING AND TRIMMING MACH! APPLICATION FILED SEP-SO; I9l5- l w w Y G 10 Y gl 962D Pmsentea .July U, wlw

2 SHEETSSHEET 2.

Moon W. een,

"iigeeneee,

Be it known that l, JACOB W, Lne, a citizen of tile United States, residing at Milwaukee, county of Milwaukee, and State of llfis `consin, have invented new and useful linprovements in Block Shaping and Trimming Machines, of which the following is a specieation. y

My invention relates to improvements in block shaping and trimming machines. The object of my invention is to provide means for cuttingacross a lilook, suoli for example,

all in the saine horizontal plane. The saw and the opei'a'ing apparatus, including the dziving mechanism and the feeding meelia.- nieni, being all supported independently of ille block, whe-Telly the apparatus is adapted to be quickly adjusted to and used for iiinming' end shaping blocks ol differing sizes and at various heights or levels above the door. f

ln the diewin 3:-

Figure l is a plan view of a shaping trimming machine embodying my invention.

Fig'. 2 is e side elevation of the seme.

Fig. is a een'mral, vertical, longitudinal, sectional View showing the saw as il: appeals at the commenoeineni of a Cutting opeiation.

Fig. Ll is a detail View of the solely engaging clutch, whereby the motor and saw may loe disengaged from the feed Soren7 on. line reluining stroke. l y

Fig. 5 is a detail plan view showing e. yragnflein: of the saw and illustrating the form of the teeth.

Like parts ae identified by the sume reference characters tlnjoughoui; the' several views. l

A. set of supporting tubular standards l are provided with extensible screw threaded implication filed September im, 3.915. llo. 53,L`W'.

sections lileed lo the mounted upon ille nino-ei i a1-ds whereby the eenen* thi y.led o; e sions frnay oe aised or loweed in stenen erde.. The nuls 3 may l e ioaied by suitable operating handles ndapeed to lie roniovulsly engaged in. sockets 6 formed in 'lli- The standards one conneef` channel liars 8 undv clamping V, clamping plaies 9 Elie Channel limbs El al 'the nppe ends of ilie ente?" of lle sinendmds. The clamp adapted to engage elle ivm e margins, lr-.vo suoli elanipinn n C n senilileil on opposite sides oit connected willi ouen oiliei' by o iin-ln ln lille eoustfueiuon 5.o

clamping plaies 9 is provid lie other is provided Willi t 'r extend. nach coupling nod if.: noi/ideal wil-l1 a ol holes l5, in any one o; Wliicli a nook L13 loe ongagj ,d aiei- 'wliieli 'lie einer end ol thecoupling rod funny ofinserted 'lzlnougli nie or umn no uni-il drawn up by nie-ans of: u nul; il" plaies are secure-lv liound upon lie Werl-i te A i. 1

-l 'will ne uinlofseood that wo elmuluids l w 'with ilieii efztei'lsions 2 aye employed to a ipeacli clamping plete 9, end ehe posed eliennel be?? eaeii me fewo standards so' thai liey rn nipnlaled one meinem ilaei. sinndaids mieli elle clamping; r. meeting channel han therefore, conv e supporizing end elamping nieniliefi' a l ed io` cooperate ivioh a similar noi'nbei lo engage the Work, as illustrated.

The oliennel laars 9 oonsniube tracks foi a superposed carriage comprising a freine composed of rods 2O conneeted eaeli end by cross rods 2l and elbovved couplings The side i'ods or liars 20 of this iframe are 95 also eonneeted by the motor suppoling members 3 upon which eleeiio inolzor :24- is mounted. '.lhe motor supporing; niein'iele 23, howeve', aie ndaped no Slide longilzndi nelly along the bers or rods 20 lvlieieliy pen lll@ ' tre mitting a traveling movement of the motor from one end et the carriage to the other. l therefore designate the member 2B as a traveler'. The carriage'is also provided with a set of legs 27 having rollers Q80 at their lower ends adapted to travel in the channels of the channel bars 8, said channel bars loen ing disposed with their side flanges projecting upwardly. lt is, therefore, obvious that the carriage may be moved transversely along the tracks 8 while the motor may he moved" longitudinally along the frame rods 2G.

Theinotor 23 is provided 'with a hanger 30 recessed to receive a set of adjustable hall nuts 33 adapted to engage a feed screw which extends through a central aperture in the hanger. The recesses which receive the 33 are of suiicient size to supporting member or traveler permit a withdrawal of the nuts 33 iroin en,

nuts 33 by an arm Zl0 and a set of toggle linlis ll each pivotally connected with one i of the nuts 33 at one end and with the arm of the lever-at the other'cnd. rlhe arm 40 is preferably pivotally connected with the lower end of the lever, as illustrated at 41. With this construction when the lever is moved in one direction the toggle links ll will push the nuts 33 outwardly to disengage from the screw 34-, While a movement of the lever in the other direction will draw the nuts (or halt nuts 33) inwardly to re'engage the screw nearer its respective ends.

The screw 3d is journaled in bearing niembers suspended from the carrier iframe. lt is provided at one end'with an extension Lto which an operating handle 5l is sem cure-d, whereby the screw may be rotated. lt is therefore obvious that 'whenV the halt nuts 33; are in engagement with the screw 3d a rotationY of the screw will nieve the traveler 23 slid motor 24C longitudinally oi' the rods 20, .flhis movement will be slow. lf a quick movement of the motor is desired lever 38 willhe actuated to disengage half nuts 33 from the screw, whereupon the traveler'and the motor may be pushed man uallyalong the rodsZO at any desired speed.

#The r`motor shaft extends vertically downwardly and at its lower ends is provided with a circular sawj, the teeth of which are pitched in the direction that the saw is rotated by the motor. -lhen the motor is in operation it may he adjust-ed to lering the saw into contact with the work b v inox-ing the traveler along the rods 9() and also adjusting the motor supporting iframe or carrier transversely along' the suitably' Leonesa tracks 8. When the saw is in contact with .teeth handsy to cause the saw to draw into the work so that there will be no tendency to crowd the carrier laterally away from the material which the saw is cutting. The indrawing movement ol the saw extends, oit course, only to the center of the saw thus limiting the depth of the kerl cut by the saw in any one operation represented by the feeding of the motor along,- the screw 34s until the saw has out entirely through the work. Lever 38 may thenibe operated to release the half nuts 33, whereupon the niotor can be drawn haelt to its original position and the carrier then adjusted laterally a distance corresponding to the depth. of' the irst'cut. The motor will then be again fed to carry the saw across the work in the same horizontal plane ancL in a path parallel to the path taken by the saw in making the first out.

I cla-imm l. In a block shaping and trimming Inaehine, the combination with a set of clampin?,- plates adapted for edtge contact with the block to be trimmed, of sets of vertical adjustable standards, each set adapted to snpport one of said plates, means for drawing the clamping plates and standards toward each other to bind the clamping plates upon the work, a set oi. tracks mounted upon the clamping plates, a carriage having a set of rollers adapted to run upon said tracks, said carriage beingl provided with frame rods eX- tending t `answersely to the tracks and slidingly mounted with reference to one set of rollers, a. traveler mounted to slide along said frame rods, a feed screw adapted to actuate said/traveler, and a motor carried by the traveler and provided with a horizontally disposed circular saw operatively connected with the motor.

2. ln a block shaping and trimming machineythe combination with a set of horizontally.' disposed clamping plates, each adapted for edge contact with the block to be trimmed, one of said plates being provided with hooks at each end thereole and the other of said plates being provided with an outwardly projecting Hangs at each end thereof, link rods, each adapted to be engagged with one of said hooks near one endA in clamping relation to the block' to be trimmed, -means for vertically clamping plates, a carriage "d ico plates, a rsw ely ha he line 0f l s, horlzmlmy saw suppume imm h@ traveler,

waitin mousflted upon h@ traveler anti d. fmge ami adapted in the presence of two Witnesses.

LEVERE'LT C.1 WTHEEJER, RMA D. Blmlvmn. 

